Sewing-machine.



J BERGER, In.

I SEWING MACHlNE. APPLICATION FILED JAN. 8. 1913.

1,21 3,449. Patented Jan. 23, 1917.

4 SHEETS-SHEET 1.

J. BERGER, JR.

SEWING MACHINE.

APPLICATION FILED JAN.8. 1913.

1,21 3A49. Patented Jan. 23, 1917.

4 SHEETS-SHEET 2.

J. BERGER, Ja.

SEWING MACHINE.

APPLICATION FILED IAN.8.19I3. 1,213,449. I Patented Jan. 23,1917.

4 SHEETS-SHEET 3.

J. BERGER, 1n.

SEWING MACHINE. APPLICATION HLED JANIB, x913.

1,213,449. Patented Jan. 23,1917.

4 SHEETS SHEET 4.

TATEg l @FFWE.

JOSEPH BERGER, J'B., 0F UTICA, NEW YORK, ASSIGNOR T0 UNION SPECIALMACHINE COMPANY, OF CHICAGO, ILLINOIS, A CUBPORATION OF ILLINOIS.

SEWING-MACHINE.

Application filed January 8, 1913.

To all whom it may concern:

Be it known that I, Josnru BERGER, Jr., a citizen of the United States,residing at 10 Genesee street, Utica, in the county of Oneida, State ofNew York, have invented certain new and useful Improvements inSewingMachines, of which the following is a description, reference beinghad to the ac companying drawing and to the figures of reference markedthereon.

The invention relates to new and useful improvements in a sewingmachine, and more particularly to a sewing machine having two or moreneedles which are set in a line cutting the line of feed diagonally, and

- in which a thread or cord is interlocked with the needle threads abovethe fabric for forming an edge covering or the like, as shown in thepatent granted to Lansing Onderdonk December 3, 1912, #LMGAOI.

An object of the invention is to provide a machine of the abovecharacter with a plurality of thread carrying fingers coiiperating withthe needles above the material, whereby a plurality of threads may belaid on the upper face of the material and a better covering for thefabric between the lines of stitching produced.

In the drawings which show by way of illustration one embodiment of theinvention,Figure 1 is a front view of the forward end of the machineembodying my improvements, said parts being broken away to show thelooper; Fig. 2 is a rear view of the machine; Fig. 3 is an end viewthereof; Fig. d is an enlarged detail in perspective showing thearrangement of the thread carrying fingers relative to the needles, andthe immediate mechanism for oscillating the same; Fig. 5 is a viewpartially in plan and partially in section showing the thread fingers,the mechanism for operating the same, and their relation to the needles;Fig. 6 is a diagrammatic View showing one position of the thread fingersrelative to the needles; Fig. 7 is a similar view showing anotherposition of the thread fingers relative to the needles. Fig. 8 is a viewsimilar to Fig. 7 showing the fabric fed a stitch length and the threadslaid on the face of the fabric stitched down.

In the drawings, I have shown a sewing machine which consists of asupporting bed Specification of Letters Patent.

lPatented Jan. 23, 1317.

Serial No. 740,894.

1, on which is mounted a standard 2, carrying an overhanging arm 3, atthe forward end of which is a needle head 4. Also carried by the headplate 1 is a work support 5. Mounted to reciprocate in the needle headis a needle bar 6, which carries two needles 7 and 8. These needles 7and 8, as clearly shown in Figs. 3 and 5, are arranged in the line whichis diagonal to the line of feed. Cooperating with the needles 7 and 8respectively are loopers 9 and 10, which are located beneath the worksupport, and operated in the usual manner. These loopers cooperateindependently with the needles. It will be obvious, however, that anyother form of stitch forming mechanism may be substituted for thatherein shown.

Located beneath the work support is the usual feed dog 11, whichcooperates with the presser foot 12 carried by the presser bar 13mounted in the needle head at the forward end of the overhanging arm.This feed bar is connected with the feed rocker 14 which is moved backand forth by the usual mechanism and the feed dog is raised and loweredby an eccentric on the main shaft 15.

The presser foot 12 is formed with a diagonal slot 16 in which theneedles 7 and 8 operate. Cooperating with the needles 7 and 8 are twothread fingers 17 and 18. The thread finger 18 is mounted directly inthe lower end of the vertical shaft 19. This vertical shaft 19 is, inturn, mounted in suitable bearings in the needle head 4: at the forwardend of the overhanging arm 3. The vertical shaft 19 is located at oneside the line of shaft is also located in the rear of the needle bar, asshown in Figs. 3 and 5. The axis of this shaft 19 is preferably sodisposed that the needles 7 and 8 are substantially equal distancestherefrom. This permits the thread finger 18 carried by the shaft tomove very close to the needles without striking the same. The shaft 19is oscillated by an arm 20, which is secured at the upper end thereofand carries a ball stud on its outer end. A link 21 is connected to thearm 20. This link is preferably formed so that it may be lengthened orshortened for varying the position of the thread finger 18. The link 21at its opposite endis connected to an arm 22 which is fixed to the shaft23. The

shaft 23 has a rearwardly extending arm 24, which is connected to aneccentric strap 25 cooperating with an eccentric on the short stub shaftcarrying a gear wheel 26, which meshes with a gear wheel 27 on the mainshaft 15.

As the main shaft 15 is rotated the shaft 23 will be oscillated, andwill in turn oscillate the thread finger 18. These gears .26 and 27 areso proportioned that the shaft 23 will be oscillated once for every twocomplete rotations of the main shaft 15. As a result the thread finger18 will move from one end of its stroke to the other end during onecomplete reciprocation of the needles, and will be moved in the oppositedirection during a second complete reciprocation of the needles.

The thread finger 17 is fixedly connected to an arm 28 carried by a yoke29 mounted to oscillate freely upon the shaft 19. This yoke between itsends carries a ball stud 30 to which is joined a link 31. The link 81 isconnected at its opposite end to an arm 32 carried by the shaft 23 andextending downwardly from the shaft 23. As the shaft 23 is oscillated,it will, therefore, be apparent that the yoke 29 will be in turnoscillated and movements imparted to the thread finger 17. This link isformed with right and left hand threads at its ends, so that when thelink is turned, the length thereof is varied in a well known manner inthis art. The arm 22 extends upwardly from the shaft 23 while the arm 32extends downwardly therefrom, as above noted. Therefore, these arms willmove in opposite directions at their outer ends, and when the threadfinger 18 moves in one direction, the thread finger 17 will be moved inthe opposite direction.

The thread finger 17 is so positioned when at the forward end of itsstroke that the covering thread a extends from the previous interlockingwith the needle loop in rear of both of the needles 7 and 8. The threadfinger 17'is so timed as to be retracted when the needles are in thematerial and rising therefrom. As a consequence, the thread a will belaid about both needles in the form of a loop, as shown in Fig. 7. Whenthe thread finger 17 is at the forward end of its stroke, the threadfinger 18 is at the rear end of its stroke, and the thread 7) carriedthereby is laid entirely in rear of both needles 7 and 8. As the threadfinger 17 moves to the rear end of its stroke, the thread finger 18moves to the forward end of its stroke, and the thread 7) will be laidin loop form about both needles. Inasmuch as the needles make a completereciprocation during the movement of each thread finger in onedirection, the needles which arerising from the material will againenter the material before the thread fingers are again moved to theother end of their strokes, and during this time the feed of the fabrictakes place so that the threads a and through the feed of the fabric arepositioned in rear of the path of the needles 7 r and 8, and on thedescent of the needles said needles will enter the fabric in front ofthe threads at and b, and the needle threads will be carried or laidover the threads a and b.

It will be apparent from the above description, that I have provided asewing machine in which the needles are so positioned that independentloopers may 00- operate therewith beneath the work support, and theloopers be moved in a direction substantially at right angles to theline of feed. This positioning of the needles, as above noted, is in aline diagonal or oblique to the line of feed. I have also providedthread laying devices wherein a plurality of covering threads may belaid about the needles on the upper face of the fabric and said threadsstitched to the fabric.

lVhile l have described the thread fingers as carrying a thread, it willbe understood that l have used this term in the broad sense and that anornamental cord may be used if desired.

It is obvious that minor changes in the details of construction and thearrangement of parts may be made without departing from the spirit ofthe invention, as set forth in the appended claims.

Having thus described my invention, what I claim is:

1. The combination of the stitch forming mechanism, including aplurality of needles set in an oblique position with respect to the lineof feed, and a looper for each needle, of thread laying mechanism forlaying threads on the upper face of the fabric, comprising threadcarrying fingers, a vertical shaft supporting one of said fingers, meansfor operating the shaft, said vertical shaft being disposed at one sidethe line of feed, whereby the thread carrying finger moves in an aresubstantially equal distances from said needles, and means forsupporting the other thread finger, whereby the same may be oscillatedabout the axis of said vertical shaft independently of said first namedthread finger and in a direction opposed thereto, and means foroscillating said last named thread finger, the oscillating devices forthe thread fingers being timed so that said thread fingers are movedsimultaneously in opposite directions and are given one completereciprocation for every two complete reciprocations of the needles. 7

2. The combination of the stitch forming mechanism, including aplurality. of needles set in an oblique position with respect to theline of feed, of a thread laying mechanism for laying threads on theupper face of the fabric, comprising a plurality of thread carryingfingers, a vertical shaft for carrying one of said fingers, anoscillating support carrying the other finger, and mounted so as tooscillate about the axis of said shaft, an operating shaft, arms carriedthereby and projecting in opposite directions therefrom, and linksconnecting said arms respectively With said vertical shaft and saidoscillating support, Whereby said thread carrying fingers aresimultaneously moved in opposite directions.

3. The combination of the stitch forming mechanism, including aplurality of needles set in an oblique position With respect to the lineof feed, of a thread laying mechanism for laying threads on the upperface of the fabric, comprising a plurality of thread carrying fingers, avertical shaft for carrying one of said fingers, an oscillating supportcarrying the other finger, and mounted so as to oscillate about the axisof said shaft, an operating shaft, arms carried thereby and projectingin opposite directions therefrom, links connecting said armsrespectively With said vertical shaft and said oscillating support,whereby said thread carrying fingers are simultaneously moved inopposite directions, and means for adjusting said links for Gopies ofthis patent may be obtained for five cents each, by addressing thevarying the position of the thread fingers relative to the needles.

4:. The combination of the stitch forming mechanism, including aplurality of needles set in an oblique position With respect to the lineof feed, of a thread laying mechanism for laying threads on the upperface of the fabric, comprising a plurality of thread carrying gers, avertical shaft for carrying one of said fingers, an oscillating supportcarrying the other finger, and mounted so as to oscillate about the axisof said shaft, an operating shaft, arms carried thereby and projectingin opposite directions therefrom, and links connecting said armsrespectively With said vertical shaft and said oscillating support,whereby said thread carrying fingers are simultaneously moved inopposite directions, said vertical shaft being disposed at one side theline of feed, whereby said thread carrying fingers are moved in arcssubstantially equal distances from the needles.

In testimony whereof, I affix my signature, in the presence of tWoWitnesses.

JosErH BERGER, JR.

Witnesses:

GHAs. B. MASON, JOHN E. ORMSBEE.

Commissioner of Patents,

Washington, D. G,

